JPH02279445A - Seat belt anchor device - Google Patents

Abstract

PURPOSE:To make a moderate operational feeding perceivable at the time of level control over a slip anchor by forming plural pieces of lock holes and tapered engaging holes on a back wall of a rail member being locked to a center pillar or the like of an automobile by a bolt, at equal pitches along the longitudinal direction. CONSTITUTION:An anchor gear bearing the above caption is provided with a rail member 11 being locked to the upper part of a center pillar of an automobile by a bolt 15, and a slide anchor 21 is fitted in a hollow part of the said member 11 free of slide motion in the longitudinal direction. A slip anchor 31 insertionally supporting an intermediate part of a seat belt is supported on this anchor 21 free of rotation by an anchor bolt 30. In this case, plural pieces of lock holes are installed in a back wall of the rail member 11 at equal pitches along the longitudinal direction, while engaging holes 19 are formed in response to these lock holes 18, and a lock member 37, being energized by a spring 39, installed in the anchor 31 is made so as to be fittable in one of these lock holes 18 and a ball 42 being energized by a spring 43 in one of the engaging holes 19, respectively.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a notebook mounted on an automobile.
The present invention relates to a seatbelt anchoring device, and particularly to a seatbelt anchoring device that can change and adjust the height position of a slip anchor relative to a vehicle body fixing portion in accordance with the sitting height of a seated person.

(Prior art) In order to prevent the so-called neck hanging phenomenon caused by the seat belt in a holding device installed in an automobile, it is possible to change and adjust the height position of the slip anchor relative to the vehicle body fixing part according to the seat height of the seated person. Various seat belt anchor devices have been proposed.

As a conventional seat anchor device of this type, a slide anchor is installed on a vertically long rail member fixed to a fixed part of the vehicle body so that it can slide freely along its longitudinal direction and its stop position can be adjusted. There is a seatbelt anchor device in which an anchor bolt is fixed to the seatbelt, and a slip anchor for inserting and supporting an intermediate portion of the seatbelt is rotatably supported by the anchor bolt.

Incidentally, examples of such seat belt anchor devices are disclosed in Japanese Utility Model Application Publication No. 61-52649 and Japanese Utility Model Application Publication No. 61-52649.
Publication No. 3-53848 and Utility Model Publication No. 1983-112955
There are publications, etc.

[Problem to be solved by the invention]

However, in such seat belt anchor devices, a position detection mechanism for detecting the position of the lock hole is not built into the slip anchor, so appropriate operations are required to move the slide anchor to a desired height position. Not only is it difficult to feel the slip anchor, but when stopping the slip anchor at the desired height, the locking member may shift from the locking hole and the locking member may not be inserted into the locking hole, making it difficult to stop the slip anchor. There is a problem with that.

An object of the present invention is to provide a seat belt anchor device having a simple structure and having a position detection mechanism.

[Means for Solving the Four Problems] The seat belt anchor device according to the present invention has a structure in which a slide reel force is applied to a vertically long rail member fixed to a vehicle body fixing part, and the stop position can be adjusted by freely sliding along the longitudinal direction of the rail member. The seatbelt anchor has an anchor bolt fixed to the slide anchor, and a slip anchor that inserts and supports the middle part of the seatbelt into the anchor pole. In the device, the rail member is formed in the shape of a curtain rail, and a plurality of lock holes are formed in the rear wall of the rail member at equal intervals along the longitudinal direction, and a plurality of Engagement holes are disposed with the same pinch as each lock hole and are recessed therein, and the slide anchor is formed in a box shape with a smaller diameter than the rail member, and is inserted into the hollow portion of the rail member. The slide anchor is fitted in a slidable manner, and the anchor, jζ
A port is slidably supported by the slide anchor together with the silt and is engageable with each lock hole of the rail member.

a spring that constantly urges the lock member in the direction of the lock hole, an operating device that moves the lock member from the lock hole in the opposite direction against the spring, and a slide anchor that can freely move forward and backward into the slide anchor. A rolling member that is fitted and can freely roll on the inner surface of the rear wall of the rail member and that engages with each of the engagement holes, and a spring that constantly biases the rolling member in the direction of the engagement hole. It is characterized by being equipped with.

[Effect]

When the slide anchor is slid within the rail member in order to change the stopping position of the slip anchor relative to the rail member, the rolling member that has been inserted into the slide anchor is pushed against the bottom wall surface of the rail member by the biasing force of the spring. While being pressed, it rolls along this surface along with the slide anchor. At this time, since the rolling member is placed under the biasing force of the spring, it moves in and out of each engagement hole as the slide anchor slides. This protrusion and retraction of the rolling member provides an appropriate operating feel for the sliding operation of the slide anchor.

Moreover, since each engagement hole corresponds to the pitch of the lock hole, when the rolling member is inserted into the engagement hole, the lock member is in a state directly facing the lock hole. -) This means that the lock hole has been detected due to the rolling member entering the engagement hole. As a result, the lock member can be properly and quickly engaged with a desired lock hole, so that the height position change operation of the slip anchor can be performed reliably and quickly.

〔Example〕

FIG. 1 is an exploded perspective view showing a seat belt anchor device according to an embodiment of the present invention, FIG. 2 is a front sectional view thereof, FIG. The figure is a plan sectional view showing the operating state, FIG. 5 is a plan sectional view taken along line V-V in FIG. 2, FIG. 6 is a plan sectional view taken along line ■-■ in FIG. 2, and FIG. 8 is a side sectional view taken along the line ■-■ in FIG. 2, FIG. 8 is a side view showing the slide anchor, and FIG. 9 is a front view thereof.

In this embodiment, the seat belt anchor device according to the present invention includes a rail member 11, and the rail member 11 is made of structural steel and is integrally formed into a curtain rail shape by a press JYI process.

A pair of bolt insertion holes 14 are arranged at the upper and lower ends of the rear wall 13 facing the opening 12 of the rail member 11, and are opened in the thickness direction. The outer surface of the rear wall 13 of the rail member 1 is brought into contact with a vehicle body fixing part (not shown) such as the upper part of the center pillar of the automobile, and the bolts 15 are inserted into the upper and lower insertion holes 14 and 14 through the respective bolts 16. They can be installed by screwing them into the vehicle body fixing parts.

Further, in the rear wall 13 of this rail member 11, a recess 17 is laid over almost the entire length between the upper and lower insertion holes 14.14, and is recessed shallowly inward in the thickness direction with a constant width and a constant depth, A plurality of lock holes 18 are provided in the recess 17, arranged at equal intervals (pitch) in the longitudinal (vertical) direction, and one in the thickness direction. Lock hole I8
are formed in the shape of slits, and are arranged so that the length direction thereof is perpendicular to the center line of the rear wall 13 of the rail member.
I'm here. On the center line of the rear wall 13 of the rail member, the same number of engagement holes 19 as the lock holes 18 are arranged so as to overlap with each lock hole 8, and the rear wall 13 bulges out in the opposite direction to the lock hole 17. Each engagement hole 19 is formed so as to be able to engage a ball as a rolling member to be described later. Since each engagement hole 19 overlaps each lock hole 8 and is arranged in a 'ζ arrangement, the pitch between each engagement hole 19 and the pitch between each lock hole 18 match each other.

A pair of stopper pieces 20 are provided at the lower ends of both side walls of the rail member 11 and protrude inwardly by cutting and raising a part of both side walls inward in the width direction, and these stopper pieces 20 will be described later. The slide anchor is configured to define the lower limit position of the slide anchor by engaging with the lower end portion of the slide anchor.

A slide anchor 2 is fitted into the hollow portion of the rail member 11 formed in the shape of a curtain rail so as to be slidable in the longitudinal direction. The slide anchor 21 has a main body 22 and a lid 23 assembled together to form a rectangular cylindrical shape, and its cross-sectional shape is shaped like the inner shape of the hollow portion of the rail member 11 so that it can slide smoothly within the hollow portion of the rail member 11. The shape is slightly smaller and similar, and its length is sufficiently shorter than the length of the rail member J''.

The slide anchor body 22 is made of structural steel or the like and is integrally molded into a channel-shaped moat 1 with a substantially U-shaped cross section by press working, and the open ends of both sides of the slide anchor body 22 are formed integrally by press working. M
Several caulking pawls 24 are integrally protruded. Also,
The slide anchor lid body 23 is integrally formed into a substantially rectangular flat plate shape by press working using structural steel, and has a plurality of notches 25 on both long sides thereof facing the caulking claws 24. It is arranged and cut like this. This lid body 23 is brought into contact with the opening of the main body 22 so as to close it, and the assembly is fixed to the main body 22 by caulking each of the caulking claws 24 of the main body 22 in the widthwise direction. There is. In this assembled state, the lid body 22 is slightly arched so that the central portion protrudes outward in the thickness direction.

Slide anchor 21 in the hollow part of the rail member 11
In the fitted state, the lid body 23 comes into contact with the inner surface of the rear wall 3 of the rail member 11 in the elastic direction due to the warpage of the central portion.

In addition, a guide 26 is provided on the center wall of the slide anchor body 22.
The guy 126 is laid over the entire length along the center line, and has a constant width and a constant height, and is slightly protruded outward in the thickness direction, so that the width of the guy 126 is approximately equal to the width of the opening 120 of the rail member 11. is set to . Therefore, when the slide anchor 21 is fitted into the center of the rail member 11, the guide 26 is slidably fitted into the opening 12. Since the lid body 23 is in elastic downward contact with the inner surface of the rear wall 13 of the rail member 11, the guide 26 is not easily fitted into the opening 12 and is stably held. This means that Therefore, the slide anchor 21 is guided by the inner surface of the rail member if, and is in a state in which it can slide smoothly without lateral vibration.

An anchor nut 27 is disposed at the lower end of the slide anchor 21 so that its center line coincides with the thickness direction, and holding holes 29 are formed in the main body 22 and the lid 23, respectively.
The chamfered portions 28 and 28 at both ends are fitted into the respective ends 29, thereby fixing it. This anchor nut 27 is configured such that an anchor bolt 30 is screwed in through a washer 30A. It is configured to be supported freely.

On the other hand, a spiral spring (spiral spring, clockwork spring) 32 is housed in the upper end of the slide anchor 2I so that one end thereof can be relatively drawn out and rolled in. That is, a spring housing hole 33 is formed at the upper end of the slide anchor lid body 22 by cutting and raising a part of the M body 22 inward in the thickness direction, and the spring receiver is opened by this cut and raised part. A piece 34 is provided to protrude from the upper end of the accommodation hole 33. The spiral spring 32 has a reel-shaped portion 32a that is connected to the accommodation hole 33.
The spring receiver piece 34 is in sliding contact with the outer peripheral surface of the reel-shaped portion 32a. A locking portion 3 is attached to the extended end of the spiral spring 32.
2b is folded back, and this locking portion 32 is formed by a locking hole 35c opened at the upper end of the rail member 11.
This is locked. The spiral spring 32 biases the slide anchor 21 with an upward spring force that offsets the gravitational force acting on the slide anchor 2 in the natural state in which the seat belt anchor device is installed in the automobile. This allows the slide anchor 2 to be suspended while maintaining balance.

A locking member 37 is disposed in the thickness direction approximately at the center of the slide anchor 21 and is supported so as to be freely advanced and retracted.
8. That is, a pair of slit-shaped insertion holes 36a and 36b are arranged in the main body 22 and the lid body 23 of the slide anchor 2 so as to face each other and extend in the lateral direction of the slide anchor 21. , are opened so as to pass through them in the thickness direction, and a plate-shaped locking member 37 is inserted between the re-insertion holes 36a and 36b so as to be slidable in the penetration direction. The length of the locking member 37 is 23.
It is configured to protrude and retract from the insertion hole 7L36b on the side and to protrude to the outside from the insertion hole 36a on the main body 22 side, and its end on the lid body side (hereinafter referred to as the front end).

) is configured such that it can be fitted into the lock hole 18. The end of the long member 37 on the main body side (hereinafter referred to as
The rear end. ) is integrally formed with an inclined surface portion as described later.

The locking member 37 is equipped with three compression coil springs, and one end of the spring 39 is engaged with a locking portion 38 cut into the tip of the locking member 37, and the other end is attached to the slide anchor 21. It is locked to the inner surface of the main body 23. Since this spring 39 is housed in the slide anchor 21 in a compressed force storage state, the locking member 37 is always biased by this spring 39 in the direction of the rear wall 13 of the rail member 11 (in the forward direction). Therefore, the front end of the locking member 37 protrudes from the insertion hole 36b and is about to be inserted into the locking hole 18.

A ball 42 as a rolling member constituting a position detection mechanism protrudes and retracts from the end surface of the lid body 23 of the slide anchor 21 near one side of the lock member 37 in the slide anchor 2L, and the ball 42 acts as a rolling member for configuring the position detection mechanism. It is arranged so that it can be engaged with each engagement hole 18.

That is, in the cover body 23 of the slide anchor 21, a ball accommodation hole 41 is arranged at a position closer to the upper side of the long member insertion hole 36b, and is opened with an inner diameter smaller by F than the outer diameter of the ball 42. The distance between the hole 41 and the insertion hole 36b is between each engagement hole 19, that is, between each lock hole 18.
The pitch is set to be the same as the pitch between the two, or an integral multiple thereof. The ball 42 is inserted into the accommodation hole 41 from the inside, and the ball 42 is held in a rotatable manner by a compression coil spring 43 disposed inside the slide anchor 21 so as to take a reaction force on the inner surface of the main body 22. ing. Since the spring 43 is wound in a conical shape, the ball 42 is held centered in the housing hole 41 by the spring 43, and the spring 43 is stored inside with a compressed force. Therefore, the ball 42 is always biased so as to slightly protrude from the accommodation hole 41. Therefore, the ball 42 rolls on the inner surface of the rear wall 13 of the rail member 1, and is always protruding from the receiving hole 41 and trying to engage with the engaging hole 19.

A decorative plate 44 is attached to the slide anchor 21 so as to cover the opening 12 of the rail member. Decorative board 4
4 is integrally molded from resin into a rectangular flat plate shape larger than the length and width of the rail member 11, and a window hole 45 slightly smaller than the slide anchor 21 is provided in the center of the decorative board 44. It was opened in . There are four locking claws 46 on the inner surface of the decorative board 44, which is the end surface on the side of the slide anchor 21.
The locking claws 46 are arranged at the four corners of the window hole 45 and protrude inward in the thickness direction, and each locking pawl 46 is attached to the main body 2 of the slide anchor 21.
The decorative plate 44 is fixedly attached to the slide anchor 2I by being locked from the inside to the short side edges of the slide anchors 2I. Therefore, the decorative plate 44 moves integrally with the sliding of the slide anchor 21 to prevent the rail member 11 from being exposed.

An operating device 50 is attached to the slide anchor 21 through the window hole 45 of the decorative plate 44, and when this operating device 50 is manually operated at a desired time, the IJ link member 37 resists the biasing force of the spring 39. By moving the locking member 37 backward, the engagement with the locking hole 8 of the locking member 37 can be released.

That is, at the rear end portion of the locking member 37 protruding from the slide anchor 21, a pair of inclined surface portions 51, 51 that substantially constitute a part of the operation bag 250 are provided. arranged in a symmetrical shape,
It is integrally bent and formed by press working, and the double-ended slope portions 51, 51 gradually curve outward (
Hereinafter, it will be referred to as the left and right direction. ) are each sloped so that they spread out. In addition, a locking pawl 52 and a locking bar 53 for later attaching the main body 54 of the operating device 50 are press-worked on the main body 22 forming the rear end surface of the slide anchor 2 so that they protrude rearward. A part of it is cut and raised and each is integrally molded. The locking pawl 52 is formed in a hook shape with an open upper portion, and the locking bar 53 is formed in a chevron shape with an open top and bottom.

On the other hand, the operating device 50 includes a main body 54 integrally molded using a structural material by press working, and a cover 55 integrally molded using resin.
is formed into an approximately body shape so as to cover the main body 54. The main body 54 has a width approximately equal to the width of the slide anchor 21;
The slide anchor 2Iζ is formed into a roughly box shape having a length about half that of the slide anchor 21, and a locking hole 56 and a locking pawl 57 are protruded from the front wall of the slide anchor 2Iζ, respectively. The locking claws 52 and the locking posts 53 are respectively formed to engage with each other. Then, the vehicle body 54 is brought into contact with the rear end surface of the slide anchor 21 through the window hole 45 of the decorative plate 44, and then pushed down to engage the locking pawl 52 on the slide anchor 21 side and the locking hole 56 on the operating device 50 side. However, the locking column 53 on the slide anchor 21 side and the locking claw 57 on the operating device 50 side are engaged with each other from above and below, thereby being fixed to the slide anchor 2I.

Further, a pair of guide portions 58 are provided on the vehicle body 54 of the operating device 50.
．． 59 are formed left and right symmetrically with respect to the center line, and a pair of left and right push buttons 60 and 61 are respectively fitted to both guide portions 58 and 59 so as to be slidable in the left and right direction. 60 and 61 are integrally molded using resin, and sloped surface portions 62 and 63 are respectively formed on the lower part of the front half of both push buttons 60 and 61. The double-ended slope portions 51 and 51 formed at the rear end of the locking member 37 are respectively abutted from the front side. In addition, the double push button 60
．． Stopper portions 64 and 65 are formed in the rear half portion of the locking member 37 so as to face the inclined surface portions 62 and 63, respectively.
They are respectively opposed from the rear side to inclined surfaces 51.51 formed at the rear end portions and abutted against the inclined surface portions 62.63.

This stopper part 64.65 is the left and right push button 60.6.
1 tries to move asymmetrically due to vibrations or shocks when the car is running, it comes into contact with the rear end of the lock member 37 from behind to prevent the lock member 37 from moving backward, thereby preventing the lock member 37 from moving back. This is to prevent an accidental release operation due to unexpected removal from the lock hole 18.

Furthermore, there are protrusions 6 on the front surfaces of the left and right push buttons 60 and 61.
6.67 are arranged at the center of the inner edge side and are integrally provided so as to protrude forward, and this protrusion 6
6.67 denotes six push buttons 60.61 which are adapted to engage with position regulating portions 68.69 formed at predetermined positions on the guide 58.59 of the main body 54, respectively.
A compression coil spring 71 is formed between the left and right push buttons 60 and 61, and the spring receiver is received by the spring receiver section 68.
．． The springs 71 cause the push buttons 60 and 61 to normally press the protrusions 66 and 67 against the position regulating portions 68 and 69, respectively. They are in contact with each other and are marked with a positioning guide 11.

The cover 55 of the operating device 50 covers the entire vehicle body 54 and also constitutes a part of the guide for both push buttons 60 and 61, respectively. Moreover, this cover 55 is attached to the slide anchor 2I and the slip anchor 3.
It is formed so as to also cover the head of the anchor bolt 30 to which L is attached.

Next, the assembly work of the seat belt anchor device according to the above configuration will be explained.

An installation space for installing a seat belt anchor device is provided in advance in a predetermined vehicle body fixing portion (not shown) such as an upper portion of a center pillar of an automobile. Rail member 11 of the seat belt anchor device according to the above configuration
, slide anchor 21 and spiral spring 3
2 is inserted in advance, the rear wall 13 is placed in a predetermined installation space, and the bolts 15 and washers 6 are tightened.

Subsequently, the decorative plate 44 is attached to the slide anchor 21 by the locking claw 4G.
is locked to the slide anchor main body 22 and fixedly mounted.

Next, the slip anchor 31 is attached to the slide anchor 21 to which the decorative board 44 is attached by passing through the window hole 45 of the decorative board 44 and screwing the anchor bolt 30 into the anchor nut 27.

Here, if it is necessary to insert a seat belt (not shown) through the slip anchor 31 in advance, the slip anchor 31 is retrofitted to the slide anchor 21 in this manner.

However, if the notebook belt can be inserted into the slip anchor 31 afterwards, the slip anchor 31 may be surrounded by the slide anchor 21 in advance.

Thereafter, the assembly of the operating device 50, in which the push buttons 60.6L, the cover 55, and other components are incorporated into the main body 54, is attached to the slide anchor 21 through the window hole 45 of the conversion plate 44. At this time, when the front surface of the null body 54 of the operating device 500 comes into contact with the rear surface of the main body 22 of the slide anchor 21 and the operating device 50 is pushed down relative to the slide anchor 21, the locking claw of the slide anchor 2I example 52 and the locking member 53 are engaged with the locking hole 56 and the locking pawl 57 on the operating device 50 side, so the operating device 50 can be fixed to the slide anchor 21 with a one-touch operation.

Next, the effect will be explained.

When the slip anchor 31 with the seat belt inserted is attached, the slide anchor 21 is suspended by the spiral spring 32, and the vertical forces are substantially balanced with each other. In other words, the slide anchor 21 is in a state where it lightly stops with respect to the rail member 11 in its natural state.

And when the height of slip anchor 3I is changed,
Both left and right push buttons 60.61 on the operating device 50
is pushed toward the center on both the left and right sides at the same time.

When the left and right push buttons 60 and 61 are pressed at the same time, the inclined surface portions 62 and 63 of the left and right push buttons 62 and 63 are pressed against the inclined surface portion 5 of the locking member 37.
1.51, the locking member 37 is moved backward against the biasing force of the spring 39. Due to this retreat, the lock member 37 is pulled out from the lock hole 18 of the rail member 11 and the lock member 37 is pulled out from the lock hole 18 of the rail member 11.
disengaged from the

When the engagement between the locking member 37 and the ay hole 18 is released, the slide anchor 21 is free to slide vertically relative to the rail member 11. Therefore, the operator
When the slide anchor 21 is moved in the direction of a desired height position, the ball 42 housed in the slide anchor 21 under the force of a spring 43 engages the engagement hole 1 of the rail member ]1.
Rolling out from 9. At this time, since the ball 42 is relatively retreated, the spring 43 is compressed by that amount, and the operating force applied to the movement of the slide anchor 21 stops changing. As a result, the operator can perceive a moderate sense of ease in movement of the console.

Then, as the slide anchor 21 moves, the ball 4
2 engages with the next stage engagement "AJ9", the ball 42
is relatively advanced by the elastic force of the spring 43 and collides with the bottom surface of the engagement hole 19, so that a clear hitting sound is generated.

Therefore, the operator can move the slide anchor 21 to the specified position 1 of the rail member 11 by this tapping sound and the feeling of engagement of the ball 42 with the engagement hole 19, and
It is possible to sense a state in which the vehicle can be stopped at the position.

In this way, the heslide anchor 21 is attached to the rail member 11.
is moved to a desired height position, the ball 42 is engaged with the engagement hole 19 at that position, and when the operator's hands are released from the left and right push buttons 60 and 61, the lock member 37 is released by the spring. By being advanced by the urging force of 39, it is inserted into the lock hole 18 and engaged.

At this time, since the ball 42 engages with the engagement hole 19, alignment between the lock member 37 and the lock hole 18 is ensured, so that the lock member 37 is reliably inserted into the lock hole 18. Become.

That is, since the engagement hole 19 is arranged so as to overlap the lock hole [8, and the ball 42 is arranged with respect to the lock member 37 with the pitch dimension of each lock hole L8fu'T, By engaging the ball 42 with the engagement hole 19, alignment between the locking member 37 and the locking hole 18 is ensured.

By the way, if the engagement of the lock member 37 with the lock hole 18 in the seat belt anchor device is unexpectedly released, there is a possibility that the height position of the seat belt will change unexpectedly.

However, in the seat belt anchor device according to this embodiment, the engagement of the lock member 37 with the lock hole 18 will not be unexpectedly released unless both the left and right push buttons 60, 61 are pressed at the same time.

In other words, the left and right push buttons 60 and 61 perform a fail-safe function.

That is, even if the lock member 37 attempts to retreat naturally due to vibration, inertia, impact, etc. when the vehicle is running, the rear end of the lock member 37 is opposed to the stopper portions 64, 65 of the left and right push buttons 60, 61. You cannot retreat because you are there.

Therefore, unexpected disengagement due to the lock member 37 being pulled out from the lock hole 18 does not occur.

In addition, if either one of the two push buttons 60 or 61 is pressed by mistake, the stopper portion 65 or 64 of the other push button 61 or 60
continues to oppose the rear end of the locking member 37, the locking member 37 cannot be moved back.
Even if one of the push buttons 60 or 61 is pressed by mistake, the occurrence of unexpected disengagement due to the lock member 37 being pulled out of the lock hole 18 is prevented.

〔Effect of the invention〕

As described above, according to the present invention, when the height position of the slip anchor is adjusted, the operator can feel an appropriate operational feeling regarding the sliding operation of the slide anchor. can be accurately moved to a desired height position on the rail member. Further, detecting the position of the lock hole with which the lock member should engage, and
Since the locking member, opening, and borehole can be aligned, the engagement between the locking member and the locking hole can be ensured and quickly, and as a result, the height position of the slip anchor can be accurately adjusted. , and can be changed quickly.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a seat belt anchor device according to an embodiment of the present invention, FIG. 2 is a front sectional view thereof, FIG. 3 is a plan sectional view taken along line 1-111 in FIG. Figure 4 is a plan sectional view showing its operating state, and Figure 5 is taken along V-V in Figure 2.
6 is a plan sectional view taken along the line Vl-Vl in Fig. 2, and Fig. 7 is a sectional view taken along the line Vl--Vl in Fig.
11 is a sectional view, FIG. 8 is a side view showing the slide anchor, and FIG. 9 is a front view thereof. DESCRIPTION OF SYMBOLS 11...Rail member, 12...Opening, 13...Back wall, 14...Port insertion hole, 15...Port, 1
6.29...washer, 17...dent, 18...
Lock hole, 19... Engagement hole, 20... Stopper part,
21...Slide anchor, 22...Main body, 23...
・Lid body, 24... Caulking claw, 25... Notch, 26
... Guide, 27 ... Anchor nut, 28 ... Chamfered portion, 30 ... Anchor port, 31 ... Slip anchor, 32 ... Spiral spring, 32a ...
・Reel shape part, 32b...Locking part, 33...Spring accommodation hole, 34...Spring receiver is a part, 35.
...Latching hole, 36...Insertion hole, 37...O7 member, 38...Spring locking part, 39...Coil spring, 41...Ball accommodation hole, 42... Ball, 43... Coil spring, 44... Decorative board, 4
5... Window hole, 46... Locking claw, 50... Operating device, 51... Inclined surface portion 52... Locking claw, 53... Locking portion, 54... Main body, 55...Cover, 56...
Locking hole, 57... Locking claw, 58.59... Guide,
60.61...Push button, 62°63...Slanted surface part, 64.65...Stopper part, 66.67...Protrusion, 68.69...10,000 regulation part, 70... The spring holder is part 7L...Coil spring. Agent Patent Attorney Tatsu Yazuka Kajihara

Claims (1)

[Claims] 1. A slide anchor is installed on a vertically elongated rail member fixed to a vehicle body fixing part so as to be able to slide freely along its longitudinal direction and adjust its stopping position, and an anchor bolt is attached to this slide anchor. is fixed, and a slip anchor for inserting and supporting an intermediate portion of the seat belt is rotatably supported by the anchor bolt, the rail member being formed in the shape of a curtain rail, A plurality of lock holes are drilled in the back wall of this rail member at equal pitches along the longitudinal direction, and a plurality of engagement holes are arranged at the same pitch as each lock hole and are respectively depressed. Further, the slide anchor is formed in a box shape having a smaller diameter than the rail member, and is slidably fitted into the hollow portion of the rail member, and the slide anchor is fitted with the A lock member that is slidably supported by the slide anchor together with the anchor bolt and can be engaged with each lock hole of the rail member, a spring that constantly biases this lock member in the direction of the lock hole, and an operating device for moving the locking member in a direction away from the locking hole; A seat belt anchor device comprising a rolling member that engages with the hole and a spring that constantly biases the rolling member in the direction of the engagement hole. 2. A main body in which the operating device is assembled to a pair of symmetrically formed inclined surfaces at an end of the locking member opposite to the rail member, and an end surface of the slide anchor opposite to the rail member; and a pair of push buttons, each of which is slidably supported in the left-right direction by the main body, and which is slidably abutted on the inclined surface portion. The seat belt anchor device described in Section 1.